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Subcircuit Is Undefined Error

KillaKem

When I try and simulate my circuit, which is just a buffer made up of two inverters back to back, I get the error messages shown below:

 WARNING -- Library file C:\Cadence\SPB_16.3\tools\PSpice\Library\infineon.lib has changed since index file nom.ind was created.

WARNING -- The timestamp changed from Thu Jun 21 17:50:36 2007 to Mon Jan 04 11:42:56 2010.

Making new index file nom.ind for library file nom.lib

ERROR -- Unable to open index file C:\Cadence\SPB_16.3\tools\PSpice\Library\nom.ind. Refer to 'How PSpice uses model libraries' section of pspug.

ERROR -- Unable to make index for library file C:\Cadence\SPB_16.3\tools\PSpice\Library\nom.lib

ERROR -- Subcircuit INV10_H is undefined

ERROR -- Subcircuit INV10_H is undefined

I have added both the NOM.LIB and the other LIB file that contains the INV10_H design as global libraries in simulation settings options window but the errors are still coming up.I thought the problem had something to do with the C:\ drive being READ ONLY so I tried moving both files to another drive and added the LIB files from there but errors still show up IN THE EXACT SAME WAY even though I added the new path in the list of library paths, which I think may mean the ORCAD PSPICE program is refusing to change the path from C:\ to H:\ for some reason.

Please Help.This is my first design :(

 

  • Alok Tripathi

     Yes,you need to provide write permission on C drive, more specifically for "C:\Cadence\SPB_16.3\tools\PSpice\Library" folder. If you can not do this, move the complete library folder anoter location where you have write permission, say H: drive. 

    Open the PSpice.ini file from C:\Cadence\SPB_16.3\tools\PSpice\PSpice.ini location

    Edit the LIBPATH sestion and replace existing lipath with new path.

    Adding new path would not help, as PSpice would still try to create the index file for C:\Cadence\SPB_16.3\tools\PSpice\Library\nom.lib. Looks like this is case at your end.

  • KillaKem
    But the PSpice.ini file is also in the C:\ drive so I can not edit it, is there a way of moving it to the H:\ drive and using it from there?
  • Alok Tripathi

    Copy the PSpice.INI file to H:\ or other location, along with Library files. Edit the PSpice.INI as described above. 

    Then you need to edit the registry entries, I am not sure if you have permission to modify those. in case you have, do the following

    Edit the value for "PSpiceConfigFile" under following REG key

    HKEY_LOCAL_MACHINE\SOFTWARE\Cadence Design Systems\Interchange\16.3.0\ProductConfiguration\Shared

    Point it to modified PSpice.ini

     

     

  • KillaKem
    In the end I ended up arranging for the C:\ drive to be given write access, going into the registry scares me.Thanks a lot.
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